804918 has 8 divisors (see below), whose sum is σ = 1609848. Its totient is φ = 268304.

The previous prime is 804913. The next prime is 804919. The reversal of 804918 is 819408.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

804918 is an admirable number.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804918.

It is not an unprimeable number, because it can be changed into a prime (804913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67071 + ... + 67082.

It is an arithmetic number, because the mean of its divisors is an integer number (201231).

2⁸⁰⁴⁹¹⁸ is an apocalyptic number.

804918 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

804918 is a wasteful number, since it uses less digits than its factorization.

804918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134158.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 804918 is about 897.1722242691. The cubic root of 804918 is about 93.0216159721.

The spelling of 804918 in words is "eight hundred four thousand, nine hundred eighteen".